ES455275A1 - Multi-component filaments - Google Patents

Multi-component filaments

Info

Publication number
ES455275A1
ES455275A1 ES455275A ES455275A ES455275A1 ES 455275 A1 ES455275 A1 ES 455275A1 ES 455275 A ES455275 A ES 455275A ES 455275 A ES455275 A ES 455275A ES 455275 A1 ES455275 A1 ES 455275A1
Authority
ES
Spain
Prior art keywords
units derived
monomer units
copolymers
comprised
ester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES455275A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SNIA Viscosa SpA
Original Assignee
SNIA Viscosa SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SNIA Viscosa SpA filed Critical SNIA Viscosa SpA
Publication of ES455275A1 publication Critical patent/ES455275A1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Multicomponent Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

A two-component juxtaposed acrylic fiber production process characterized by juxtaposed spinning of two spinning solutions, each containing an acrylonitrile-based copolymer, the two copolymers having very close molecular weights, which comprise, in addition to acrylonitrile, at least one ester selected from the group consisting of acrylic and vinyl esters, and at least one monomer containing sulfonic groups, and having a) an average content of the monomer units derived from said ester comprised between 4.5 and 5.7%, the difference between the contents of said units of the two copolymers, expressed as a percentage, comprised between 1.9 and 3.2, b) an average content of the monomer units derived from said sulfonic group-containing comonomer comprised between 40 and 60 meg of acid per kg of fiber, the difference between the contents of said units of the two largest copolymers not being or 25 meg of acid per kg of fiber, with the copolymer containing the highest percentage of monomer units derived from the ester also containing the highest percentage of monomer units derived from the comonomer containing sulfonic groups. (Machine-translation by Google Translate, not legally binding)
ES455275A 1976-01-26 1977-01-22 Multi-component filaments Expired ES455275A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19568/76A IT1079106B (en) 1976-01-26 1976-01-26 ACRYLIC TWO-COMPOUND FIBER PRODUCTION

Publications (1)

Publication Number Publication Date
ES455275A1 true ES455275A1 (en) 1978-01-01

Family

ID=11159131

Family Applications (1)

Application Number Title Priority Date Filing Date
ES455275A Expired ES455275A1 (en) 1976-01-26 1977-01-22 Multi-component filaments

Country Status (9)

Country Link
BG (1) BG41310A3 (en)
DE (1) DE2703545A1 (en)
ES (1) ES455275A1 (en)
FR (1) FR2339005A1 (en)
GB (1) GB1527211A (en)
GR (1) GR62555B (en)
IT (1) IT1079106B (en)
TR (1) TR19340A (en)
ZA (1) ZA77446B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442901A1 (en) * 1978-11-30 1980-06-27 Rhone Poulenc Textile DOUBLE CONSTITUENT ACRYLIC FIBERS
DE2946947A1 (en) * 1979-11-21 1981-06-04 Degussa Ag, 6000 Frankfurt OVERHEATING PROTECTED CATALYST

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020163B1 (en) * 1966-03-26 1975-07-12
US3515627A (en) * 1966-03-26 1970-06-02 Japan Exlan Co Ltd Acrylic composite fibers having irreversible three - dimensional coil crimps

Also Published As

Publication number Publication date
DE2703545A1 (en) 1977-07-28
TR19340A (en) 1978-12-07
ZA77446B (en) 1977-12-28
BG41310A3 (en) 1987-05-15
FR2339005B1 (en) 1983-10-07
IT1079106B (en) 1985-05-08
GB1527211A (en) 1978-10-04
GR62555B (en) 1979-05-10
FR2339005A1 (en) 1977-08-19

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